investigation的近义词有：inquiry, investigation, research, survey。下面这些名词均有"调查"的含义：inquiry：普通常用词，指正式调查，也指一般的打听或查询。investigation：一般指有系统的调查以得到希望发现或需要知道的事。research：指科学工作者等为揭示自然规律或获取某个领域的新知识而进行长时间的调查研究。survey：多指为写书面报告而进行的民意测验或调查。...

We are making a thorough investigation...我们正在进行彻底调查。The President has ordered a full investigation...总统已经下令进行全面调查。There was concern in the city that police were making little headway in the investigation.警方在调查中未能取得什么进展，对...

An investigation is underway to find out how the disaster happened.调查已经展开，以查明灾难是如何发生的。But as the investigation continued, the plot began to thicken.但是随着调查的继续深入，情况开始变得复杂起来。DNA fingerprinting has proved the clincher in thi...

n.（正式的）调查，研究，侦查，科学研究，学术研究...

investigation的音标：investigation的英式发音音标为：[ɪnˌvestɪ'geɪʃn]investigation的美式发音音标为：[ɪnˌvɛstɪ'ɡeʃən]...

investigation的复数形式为：investigations...